64972557

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 48

約数和(自身を含む): 108043200

約数和(自身を除く): 43070643

約数列:

[1, 3, 9, 13, 27, 29, 39, 87, 117, 169, 261, 351, 377, 491, 507, 783, 1131, 1473, 1521, 3393, 4419, 4563, 4901, 6383, 10179, 13257, 14239, 14703, 19149, 42717, 44109, 57447, 82979, 128151, 132327, 172341, 185107, 248937, 384453, 555321, 746811, 1665963, 2240433, 2406391, 4997889, 7219173, 21657519, 64972557]

約数ペア:

[(1, 64972557), (3, 21657519), (9, 7219173), (13, 4997889), (27, 2406391), (29, 2240433), (39, 1665963), (87, 746811), (117, 555321), (169, 384453), (261, 248937), (351, 185107), (377, 172341), (491, 132327), (507, 128151), (783, 82979), (1131, 57447), (1473, 44109), (1521, 42717), (3393, 19149), (4419, 14703), (4563, 14239), (4901, 13257), (6383, 10179)]